Sleep tracker



1. Sleep tracker

1.1 : Perspective

1.2 : Front

1.3 : Back

1.4 : Left

1.5 : Right

1.6 : Top

1.7 : Bottom

The broken lines shown in the figures depict portions of the sleep tracker that form no part of the claimed design. The parallel fine lines and curves shown in all the drawings indicate the relief of surface of the product. 

CLAIM The ornamental design for a sleep tracker, as shown and described. 